Journal
EUROPEAN HEART JOURNAL
Volume 33, Issue 13, Pages 1582-1588Publisher
OXFORD UNIV PRESS
DOI: 10.1093/eurheartj/ehr499
Keywords
n-3 fatty acids; Eicosapentaenoic acid; Docosahexaenoic acid; -linolenic acid; Cardiovascular diseases; Statins; Lipids
Categories
Funding
- Netherlands Heart Foundation
- National Institutes of Health, USA
- Unilever R&D, the Netherlands
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Recent secondary prevention trials have failed to demonstrate a beneficial effect of n-3 fatty acids on cardiovascular outcomes, which may be due to the growing use of statins since the mid-1990s. The aim of the present study was to assess whether statins modify the effects of n-3 fatty acids on major adverse cardiovascular events in patients with a history of myocardial infarction (MI). Patients who participated in the Alpha Omega Trial were divided into consistent statin users (n 3740) and consistent statin non-users (n 413). In these two groups of patients, the effects of an additional daily amount of 400 mg eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA), 2 g -linolenic acid (ALA), or both on major cardiovascular events were evaluated. Multivariable Coxs proportional hazard models were used to calculate adjusted hazard rate ratios (HRadj). Among the statin users 495 (13) and among the statin non-users 62 (15) developed a major cardiovascular event. In statin users, an additional amount of n-3 fatty acids did not reduce cardiovascular events [HRadj 1.02; 95 confidence interval (CI): 0.80, 1.31; P 0.88]. In statin non-users, however, only 9 of those who received EPADHA plus ALA experienced an event compared with 18 in the placebo group (HRadj 0.46; 95 CI: 0.21, 1.01; P 0.051). In patients with a history of MI who are not treated with statins, low-dose supplementation with n-3 fatty acids may reduce major cardiovascular events. This study suggests that statin treatment modifies the effects of n-3 fatty acids on the incidence of major cardiovascular events. ClinicalTrials.gov number: NCT00127452.
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